Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2306063Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1021076407440791546.5old
4484090322780129893692168.62025-04-28 23:10:13
ECM
DigitsB1Curves
2550000175 / 280
Estimated T-Level: 23.1
TF below 2^72 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-11Oliver Kruse911DC831D79240231013
Verified (Factored)2017-11-22kkmrkkblmbrbk911DC831D79240231145443313
Verified2025-04-28JC_Herles234C8116A003A0932191293153
History
DateUserTypeResult
2025-04-29HeadedCERT
PRP Certification
Proof certified good
2025-04-28JC_HerlesC-PRP
M2306063/102107640744079/448409032278012989369 : 234C8116A003A093
PRP proof power = 7
PRP: Verified
Proof certified good
2025-04-28JC_HerlesF-ECM
Factor: 448409032278012989369 / (ECM curve 26, B1=85021, B2=169505700, Edwards Sigma=7072276419104542)
2021-06-12ViliamFNF-PM1
B1=5000000, B2=505000000
2018-02-19alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-22kkmrkkblmbrbkC-PRP
M2306063/102107640744079 : 911DC831D7924023
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2306063/102107640744079 : 911DC831D7924023
PRP: Verified (Factored)
PRP without proof (not generated)